Helfrich, Jr., Ralph William

• Indiana Magazine of History Volume 45, Issue 1, March 1949 - Reviews
  Law and Locomotives: The Impact of the Railroad on Wisconsin Law in the Nineteenth Century by Robert S. Hunt
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• Indiana Magazine of History Volume 68, Issue 3, September 1972 - Reviews
  Railroads and the Granger Laws by George H. Miller
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• Indiana Magazine of History Volume 58, Issue 1, March 1962 - Reviews
  Virginia Railroads in the Civil War. by Angus James Johnston, II
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